Delivers 8520 pieces of mail and one year about how many pieces of mail does he deliver in two months explain your steps

answer:

there were 12 questions worth 3 points

step-by-step explanation:

let x = 2 point questions

let y = 3 point questions

what we know:

x + y = 20 (questions)

so to solve for x we tweak our equation:

x = 20 - y

now we need an equation to explain out question set up:

2x (2 point questions)

3y (2 point questions)

2x + 3y = 52 (52 being our total possible points)

now we take our x = 20 - y and substitute it into our 2x + 3y = 52 equation.

2(20 - y) + 3y = 52

next we distribute the 2 through the parenthesis:

40 - 2y + 3y = 52

now, gather the like terms:

40 + y = 52

subtract 40 from both sides:

y = 12

revisit x + y = 20 and sub 12 in for y:

x + 12 = 20

x = 8

8 2-point questions would be 16 points

12 3-point questions would be 36 points

16 + 36 = 52 (which matches the max value of our test)

answer:

the answer is 56

step-by-step explanation:

how do i know? i used a calculator

i cant say the name in a comment because brainly wont let me lol

answer:

the answer is the same thing. 250.5

step-by-step explanation:

i know this because there is no hundredth so, you have to make it into a 0. and there is nothing after that 0 so, you keep everything in front of it.